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SbBox2f.h
1 #ifndef COIN_SBBOX2F_H
2 #define COIN_SBBOX2F_H
3 
4 /**************************************************************************\
5  *
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25 \**************************************************************************/
26 
27 #include <Inventor/SbVec2f.h>
28 
29 class SbBox2d;
30 class SbBox2s;
31 class SbBox2i32;
32 
33 class COIN_DLL_API SbBox2f {
34 public:
35  SbBox2f(void) { makeEmpty(); }
36  SbBox2f(float xmin, float ymin, float xmax, float ymax)
37  : minpt(xmin, ymin), maxpt(xmax, ymax) { }
38  SbBox2f(const SbVec2f & minpoint, const SbVec2f & maxpoint)
39  : minpt(minpoint), maxpt(maxpoint) { }
40  explicit SbBox2f(const SbBox2d & box) { setBounds(box); }
41  explicit SbBox2f(const SbBox2s & box) { setBounds(box); }
42  explicit SbBox2f(const SbBox2i32 & box) { setBounds(box); }
43 
44  SbBox2f & setBounds(float xmin, float ymin, float xmax, float ymax)
45  { minpt.setValue(xmin, ymin); maxpt.setValue(xmax, ymax); return *this; }
46  SbBox2f & setBounds(const SbVec2f & minpoint, const SbVec2f & maxpoint)
47  { minpt = minpoint; maxpt = maxpoint; return *this; }
48  SbBox2f & setBounds(const SbBox2d & box);
49  SbBox2f & setBounds(const SbBox2s & box);
50  SbBox2f & setBounds(const SbBox2i32 & box);
51 
52  void getBounds(float & xmin, float & ymin, float & xmax, float & ymax) const
53  { minpt.getValue(xmin, ymin); maxpt.getValue(xmax, ymax); }
54  void getBounds(SbVec2f & minpoint, SbVec2f & maxpoint) const
55  { minpoint = minpt; maxpoint = maxpt; }
56 
57  const SbVec2f & getMin(void) const { return minpt; }
58  SbVec2f & getMin(void) { return minpt; }
59 
60  const SbVec2f & getMax(void) const { return maxpt; }
61  SbVec2f & getMax(void) { return maxpt; }
62 
63  void extendBy(const SbVec2f & point);
64  void extendBy(const SbBox2f & box);
65  void makeEmpty(void);
66  SbBool isEmpty(void) const { return (maxpt[0] < minpt[0]); }
67  SbBool hasArea(void) const { return ((maxpt[0] > minpt[0]) && (maxpt[1] > minpt[1])); }
68 
69  SbBool intersect(const SbVec2f & point) const;
70  SbBool intersect(const SbBox2f & box) const;
71  SbVec2f getClosestPoint(const SbVec2f & point) const;
72 
73  SbVec2f getCenter(void) const { return (minpt + maxpt) * 0.5f; }
74  void getOrigin(float & originX, float & originY) const
75  { minpt.getValue(originX, originY); }
76  void getSize(float & sizeX, float & sizeY) const
77  { if (isEmpty()) { sizeX = sizeY = 0.0f; }
78  else { sizeX = maxpt[0] - minpt[0]; sizeY = maxpt[1] - minpt[1]; } }
79  float getAspectRatio(void) const
80  { SbDividerChk("SbBox2f::getAspectRatio()", maxpt[1] - minpt[1]);
81  return (maxpt[0] - minpt[0]) / (maxpt[1] - minpt[1]); }
82 
83 protected:
84  SbVec2f minpt, maxpt;
85 
86 }; // SbBox2f
87 
88 COIN_DLL_API inline int operator == (const SbBox2f & b1, const SbBox2f & b2) {
89  return ((b1.getMin() == b2.getMin()) && (b1.getMax() == b2.getMax()));
90 }
91 
92 COIN_DLL_API inline int operator != (const SbBox2f & b1, const SbBox2f & b2) {
93  return !(b1 == b2);
94 }
95 
96 #endif // !COIN_SBBOX2F_H
The SbVec2f class is a 2 dimensional vector with floating point coordinates.This vector class is used...
Definition: SbVec2f.h:39
void getBounds(float &xmin, float &ymin, float &xmax, float &ymax) const
Definition: SbBox2f.h:52
SbBox2f(float xmin, float ymin, float xmax, float ymax)
Definition: SbBox2f.h:36
const SbVec2f & getMax(void) const
Definition: SbBox2f.h:60
SbBox2f(void)
Definition: SbBox2f.h:35
The SbBox2d class is a 2 dimensional box with double precision corner coordinates.This box class is used by many other classes in Coin for data exchange and storage. It provides two box corners with double precision coordinates, which is among other things useful for representing screen or canvas dimensions in normalized coordinates.
Definition: SbBox2d.h:33
int operator!=(const SbBox2d &b1, const SbBox2d &b2)
Definition: SbBox2d.h:92
const SbVec2f & getMin(void) const
Definition: SbBox2f.h:57
int operator==(const SbBox2d &b1, const SbBox2d &b2)
Definition: SbBox2d.h:88
SbBox2f & setBounds(float xmin, float ymin, float xmax, float ymax)
Definition: SbBox2f.h:44
void getOrigin(float &originX, float &originY) const
Definition: SbBox2f.h:74
SbBool isEmpty(void) const
Definition: SbBox2f.h:66
SbBool hasArea(void) const
Definition: SbBox2f.h:67
The SbBox2s class is a 2 dimensional box with short integer coordinates.This box class is used by oth...
Definition: SbBox2s.h:34
void getBounds(SbVec2f &minpoint, SbVec2f &maxpoint) const
Definition: SbBox2f.h:54
float getAspectRatio(void) const
Definition: SbBox2f.h:79
The SbBox2f class is a 2 dimensional box with floating point corner coordinates.This box class is use...
Definition: SbBox2f.h:33
SbVec2f getCenter(void) const
Definition: SbBox2f.h:73
void getSize(float &sizeX, float &sizeY) const
Definition: SbBox2f.h:76
SbBox2f(const SbVec2f &minpoint, const SbVec2f &maxpoint)
Definition: SbBox2f.h:38
SbBox2f & setBounds(const SbVec2f &minpoint, const SbVec2f &maxpoint)
Definition: SbBox2f.h:46
SbVec2f & getMin(void)
Definition: SbBox2f.h:58

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